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-rw-r--r--src/southbridge/intel/bd82x6x/Makefile.inc4
-rw-r--r--src/southbridge/intel/common/spi.c (renamed from src/southbridge/intel/bd82x6x/spi.c)132
-rw-r--r--src/southbridge/intel/fsp_bd82x6x/Makefile.inc4
-rw-r--r--src/southbridge/intel/fsp_bd82x6x/spi.c751
-rw-r--r--src/southbridge/intel/ibexpeak/Makefile.inc4
-rw-r--r--src/southbridge/intel/ibexpeak/spi.c1067
-rw-r--r--src/southbridge/intel/lynxpoint/Makefile.inc4
-rw-r--r--src/southbridge/intel/lynxpoint/spi.c657
8 files changed, 34 insertions, 2589 deletions
diff --git a/src/southbridge/intel/bd82x6x/Makefile.inc b/src/southbridge/intel/bd82x6x/Makefile.inc
index 8abc56a7a2..64038e5e78 100644
--- a/src/southbridge/intel/bd82x6x/Makefile.inc
+++ b/src/southbridge/intel/bd82x6x/Makefile.inc
@@ -39,8 +39,8 @@ ramstage-y += reset.c
ramstage-y += watchdog.c
ramstage-$(CONFIG_ELOG) += elog.c
-ramstage-y += spi.c
-smm-$(CONFIG_SPI_FLASH_SMM) += spi.c
+ramstage-y += ../common/spi.c
+smm-$(CONFIG_SPI_FLASH_SMM) += ../common/spi.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me.c me_8.x.c finalize.c pch.c
diff --git a/src/southbridge/intel/bd82x6x/spi.c b/src/southbridge/intel/common/spi.c
index 1f2511e4b0..b323dbbb2c 100644
--- a/src/southbridge/intel/bd82x6x/spi.c
+++ b/src/southbridge/intel/common/spi.c
@@ -34,7 +34,6 @@
#include <spi_flash.h>
#include <spi-generic.h>
-#include "pch.h"
#define min(a, b) ((a)<(b)?(a):(b))
@@ -129,7 +128,6 @@ typedef struct ich9_spi_regs {
typedef struct ich_spi_controller {
int locked;
- int revision;
uint32_t flmap0;
uint32_t hsfs;
@@ -317,133 +315,57 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
slave->bus = bus;
slave->cs = cs;
- if (cntlr.revision == 9) {
- slave->force_programmer_specific = spi_is_multichip ();
- slave->programmer_specific_probe = spi_flash_hwseq;
- }
+ slave->force_programmer_specific = spi_is_multichip ();
+ slave->programmer_specific_probe = spi_flash_hwseq;
return slave;
}
-/*
- * Check if this device ID matches one of supported Intel PCH devices.
- *
- * Return the ICH version if there is a match, or zero otherwise.
- */
-static inline int get_ich_version(uint16_t device_id)
-{
- if (device_id == PCI_DEVICE_ID_INTEL_TGP_LPC)
- return 7;
-
- if ((device_id >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX) ||
- (device_id >= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX))
- return 9;
-
- return 0;
-}
-
void spi_init(void)
{
- int ich_version = 0;
-
uint8_t *rcrb; /* Root Complex Register Block */
uint32_t rcba; /* Root Complex Base Address */
uint8_t bios_cntl;
device_t dev;
- uint32_t ids;
- uint16_t vendor_id, device_id;
+ ich9_spi_regs *ich9_spi;
+ uint16_t hsfs;
#ifdef __SMM__
dev = PCI_DEV(0, 31, 0);
#else
dev = dev_find_slot(0, PCI_DEVFN(31, 0));
#endif
- pci_read_config_dword(dev, 0, &ids);
- vendor_id = ids;
- device_id = (ids >> 16);
-
- if (vendor_id != PCI_VENDOR_ID_INTEL) {
- printk(BIOS_DEBUG, "ICH SPI: No ICH found.\n");
- return;
- }
-
- ich_version = get_ich_version(device_id);
-
- if (!ich_version) {
- printk(BIOS_DEBUG, "ICH SPI: No known ICH found.\n");
- return;
- }
pci_read_config_dword(dev, 0xf0, &rcba);
/* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable. */
rcrb = (uint8_t *)(rcba & 0xffffc000);
- cntlr.revision = ich_version;
- switch (ich_version) {
- case 7:
- {
- const uint16_t ich7_spibar_offset = 0x3020;
- ich7_spi_regs *ich7_spi =
- (ich7_spi_regs *)(rcrb + ich7_spibar_offset);
-
- ichspi_lock = readw_(&ich7_spi->spis) & SPIS_LOCK;
- cntlr.opmenu = ich7_spi->opmenu;
- cntlr.menubytes = sizeof(ich7_spi->opmenu);
- cntlr.optype = &ich7_spi->optype;
- cntlr.addr = &ich7_spi->spia;
- cntlr.data = (uint8_t *)ich7_spi->spid;
- cntlr.databytes = sizeof(ich7_spi->spid);
- cntlr.status = (uint8_t *)&ich7_spi->spis;
- cntlr.control = &ich7_spi->spic;
- cntlr.bbar = &ich7_spi->bbar;
- cntlr.preop = &ich7_spi->preop;
- break;
- }
- case 9:
- {
- const uint16_t ich9_spibar_offset = 0x3800;
- ich9_spi_regs *ich9_spi =
- (ich9_spi_regs *)(rcrb + ich9_spibar_offset);
- uint16_t hsfs;
- cntlr.ich9_spi = ich9_spi;
- hsfs = readw_(&ich9_spi->hsfs);
- ichspi_lock = hsfs & HSFS_FLOCKDN;
- cntlr.hsfs = hsfs;
- cntlr.opmenu = ich9_spi->opmenu;
- cntlr.menubytes = sizeof(ich9_spi->opmenu);
- cntlr.optype = &ich9_spi->optype;
- cntlr.addr = &ich9_spi->faddr;
- cntlr.data = (uint8_t *)ich9_spi->fdata;
- cntlr.databytes = sizeof(ich9_spi->fdata);
- cntlr.status = &ich9_spi->ssfs;
- cntlr.control = (uint16_t *)ich9_spi->ssfc;
- cntlr.bbar = &ich9_spi->bbar;
- cntlr.preop = &ich9_spi->preop;
-
- if (cntlr.hsfs & HSFS_FDV)
- {
- writel_ (4, &ich9_spi->fdoc);
- cntlr.flmap0 = readl_(&ich9_spi->fdod);
- }
- break;
- }
- default:
- printk(BIOS_DEBUG, "ICH SPI: Unrecognized ICH version %d.\n", ich_version);
+ ich9_spi = (ich9_spi_regs *)(rcrb + 0x3800);
+ cntlr.ich9_spi = ich9_spi;
+ hsfs = readw_(&ich9_spi->hsfs);
+ ichspi_lock = hsfs & HSFS_FLOCKDN;
+ cntlr.hsfs = hsfs;
+ cntlr.opmenu = ich9_spi->opmenu;
+ cntlr.menubytes = sizeof(ich9_spi->opmenu);
+ cntlr.optype = &ich9_spi->optype;
+ cntlr.addr = &ich9_spi->faddr;
+ cntlr.data = (uint8_t *)ich9_spi->fdata;
+ cntlr.databytes = sizeof(ich9_spi->fdata);
+ cntlr.status = &ich9_spi->ssfs;
+ cntlr.control = (uint16_t *)ich9_spi->ssfc;
+ cntlr.bbar = &ich9_spi->bbar;
+ cntlr.preop = &ich9_spi->preop;
+
+ if (cntlr.hsfs & HSFS_FDV)
+ {
+ writel_ (4, &ich9_spi->fdoc);
+ cntlr.flmap0 = readl_(&ich9_spi->fdod);
}
ich_set_bbar(0);
/* Disable the BIOS write protect so write commands are allowed. */
pci_read_config_byte(dev, 0xdc, &bios_cntl);
- switch (ich_version) {
- case 9:
- /* Deassert SMM BIOS Write Protect Disable. */
- bios_cntl &= ~(1 << 5);
- break;
-
- default:
- break;
- }
+ /* Deassert SMM BIOS Write Protect Disable. */
+ bios_cntl &= ~(1 << 5);
pci_write_config_byte(dev, 0xdc, bios_cntl | 0x1);
}
@@ -626,8 +548,6 @@ static int ich_status_poll(u16 bitmask, int wait_til_set)
static int spi_is_multichip (void)
{
- if (cntlr.revision != 9)
- return 0;
if (!(cntlr.hsfs & HSFS_FDV))
return 0;
return !!((cntlr.flmap0 >> 8) & 3);
diff --git a/src/southbridge/intel/fsp_bd82x6x/Makefile.inc b/src/southbridge/intel/fsp_bd82x6x/Makefile.inc
index dac12411ff..7088caa59a 100644
--- a/src/southbridge/intel/fsp_bd82x6x/Makefile.inc
+++ b/src/southbridge/intel/fsp_bd82x6x/Makefile.inc
@@ -36,8 +36,8 @@ ramstage-y += reset.c
ramstage-y += watchdog.c
ramstage-$(CONFIG_ELOG) += elog.c
-ramstage-y += spi.c
-smm-$(CONFIG_SPI_FLASH_SMM) += spi.c
+ramstage-y += ../common/spi.c
+smm-$(CONFIG_SPI_FLASH_SMM) += ../common/spi.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me.c me_8.x.c finalize.c
diff --git a/src/southbridge/intel/fsp_bd82x6x/spi.c b/src/southbridge/intel/fsp_bd82x6x/spi.c
deleted file mode 100644
index 887463a069..0000000000
--- a/src/southbridge/intel/fsp_bd82x6x/spi.c
+++ /dev/null
@@ -1,751 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/* This file is derived from the flashrom project. */
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <delay.h>
-#include <arch/io.h>
-#include <console/console.h>
-#include <device/pci_ids.h>
-
-#include <spi-generic.h>
-
-static int ich_status_poll(u16 bitmask, int wait_til_set);
-
-#define min(a, b) ((a)<(b)?(a):(b))
-
-#ifdef __SMM__
-#include <arch/pci_mmio_cfg.h>
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#else /* !__SMM__ */
-#include <device/device.h>
-#include <device/pci.h>
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#endif /* !__SMM__ */
-
-typedef struct spi_slave ich_spi_slave;
-
-static int ichspi_lock = 0;
-
-typedef struct ich7_spi_regs {
- uint16_t spis;
- uint16_t spic;
- uint32_t spia;
- uint64_t spid[8];
- uint64_t _pad;
- uint32_t bbar;
- uint16_t preop;
- uint16_t optype;
- uint8_t opmenu[8];
-} __attribute__((packed)) ich7_spi_regs;
-
-typedef struct ich9_spi_regs {
- uint32_t bfpr; // 0
- uint16_t hsfs; // 4
- uint16_t hsfc; // 6
- uint32_t faddr; // 8
- uint32_t _reserved0; // 0xC
- uint32_t fdata[16]; // 0x10
- uint32_t frap; // 0x50
- uint32_t freg[5]; // 0x54
- uint32_t _reserved1[3]; // 0x67
- uint32_t pr[5]; // 0x74
- uint32_t _reserved2[2]; // 0x88
- uint8_t ssfs; // 0x90
- uint8_t ssfc[3]; // 0x91
- uint16_t preop; // 0x94
- uint16_t optype; // 0x96
- uint8_t opmenu[8]; // 0x98
- uint32_t bbar; // 0xB0
- uint8_t _reserved3[12];
- uint32_t fdoc;
- uint32_t fdod;
- uint8_t _reserved4[8];
- uint32_t afc;
- uint32_t lvscc;
- uint32_t uvscc;
- uint8_t _reserved5[4];
- uint32_t fpb;
- uint8_t _reserved6[28];
- uint32_t srdl;
- uint32_t srdc;
- uint32_t srd;
-} __attribute__((packed)) ich9_spi_regs;
-
-typedef struct ich_spi_controller {
- int locked;
-
- uint8_t *opmenu;
- int menubytes;
- uint16_t *preop;
- uint16_t *optype;
- uint32_t *addr;
- uint8_t *data;
- unsigned databytes;
- uint8_t *status;
- uint16_t *control;
- uint32_t *bbar;
-} ich_spi_controller;
-
-static ich_spi_controller cntlr;
-
-enum {
- SPIS_SCIP = 0x0001,
- SPIS_GRANT = 0x0002,
- SPIS_CDS = 0x0004,
- SPIS_FCERR = 0x0008,
- SSFS_AEL = 0x0010,
- SPIS_LOCK = 0x8000,
- SPIS_RESERVED_MASK = 0x7ff0,
- SSFS_RESERVED_MASK = 0x7fe2
-};
-
-enum {
- SPIC_SCGO = 0x000002,
- SPIC_ACS = 0x000004,
- SPIC_SPOP = 0x000008,
- SPIC_DBC = 0x003f00,
- SPIC_DS = 0x004000,
- SPIC_SME = 0x008000,
- SSFC_SCF_MASK = 0x070000,
- SSFC_RESERVED = 0xf80000
-};
-
-enum {
- HSFS_FDONE = 0x0001,
- HSFS_FCERR = 0x0002,
- HSFS_AEL = 0x0004,
- HSFS_BERASE_MASK = 0x0018,
- HSFS_BERASE_SHIFT = 3,
- HSFS_SCIP = 0x0020,
- HSFS_FDOPSS = 0x2000,
- HSFS_FDV = 0x4000,
- HSFS_FLOCKDN = 0x8000
-};
-
-enum {
- HSFC_FGO = 0x0001,
- HSFC_FCYCLE_MASK = 0x0006,
- HSFC_FCYCLE_SHIFT = 1,
- HSFC_FDBC_MASK = 0x3f00,
- HSFC_FDBC_SHIFT = 8,
- HSFC_FSMIE = 0x8000
-};
-
-enum {
- SPI_OPCODE_TYPE_READ_NO_ADDRESS = 0,
- SPI_OPCODE_TYPE_WRITE_NO_ADDRESS = 1,
- SPI_OPCODE_TYPE_READ_WITH_ADDRESS = 2,
- SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS = 3,
-};
-
-#if CONFIG_DEBUG_SPI_FLASH
-
-static u8 readb_(const void *addr)
-{
- u8 v = read8((unsigned long)addr);
- printk(BIOS_DEBUG, "read %02x from %p\n",
- v, addr);
- return v;
-}
-
-static u16 readw_(const void *addr)
-{
- u16 v = read16((unsigned long)addr);
- printk(BIOS_DEBUG, "read %04x from %p\n",
- v, addr);
- return v;
-}
-
-static u32 readl_(const void *addr)
-{
- u32 v = read32((unsigned long)addr);
- printk(BIOS_DEBUG, "read %08x from %p\n",
- v, addr);
- return v;
-}
-
-static void writeb_(u8 b, const void *addr)
-{
- write8((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %02x to %p\n",
- b, addr);
-}
-
-static void writew_(u16 b, const void *addr)
-{
- write16((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %04x to %p\n",
- b, addr);
-}
-
-static void writel_(u32 b, const void *addr)
-{
- write32((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %08x to %p\n",
- b, addr);
-}
-
-#else /* CONFIG_DEBUG_SPI_FLASH ^^^ enabled vvv NOT enabled */
-
-#define readb_(a) read8((uint32_t)a)
-#define readw_(a) read16((uint32_t)a)
-#define readl_(a) read32((uint32_t)a)
-#define writeb_(val, addr) write8((uint32_t)addr, val)
-#define writew_(val, addr) write16((uint32_t)addr, val)
-#define writel_(val, addr) write32((uint32_t)addr, val)
-
-#endif /* CONFIG_DEBUG_SPI_FLASH ^^^ NOT enabled */
-
-static void write_reg(const void *value, void *dest, uint32_t size)
-{
- const uint8_t *bvalue = value;
- uint8_t *bdest = dest;
-
- while (size >= 4) {
- writel_(*(const uint32_t *)bvalue, bdest);
- bdest += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- writeb_(*bvalue, bdest);
- bdest++; bvalue++; size--;
- }
-}
-
-static void read_reg(const void *src, void *value, uint32_t size)
-{
- const uint8_t *bsrc = src;
- uint8_t *bvalue = value;
-
- while (size >= 4) {
- *(uint32_t *)bvalue = readl_(bsrc);
- bsrc += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- *bvalue = readb_(bsrc);
- bsrc++; bvalue++; size--;
- }
-}
-
-static void ich_set_bbar(uint32_t minaddr)
-{
- const uint32_t bbar_mask = 0x00ffff00;
- uint32_t ichspi_bbar;
-
- minaddr &= bbar_mask;
- ichspi_bbar = readl_(cntlr.bbar) & ~bbar_mask;
- ichspi_bbar |= minaddr;
- writel_(ichspi_bbar, cntlr.bbar);
-}
-
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
- printk(BIOS_DEBUG, "spi_cs_is_valid used but not implemented\n");
- return 0;
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
-{
- ich_spi_slave *slave = malloc(sizeof(*slave));
-
- if (!slave) {
- printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n");
- return NULL;
- }
-
- memset(slave, 0, sizeof(*slave));
-
- slave->bus = bus;
- slave->cs = cs;
- return slave;
-}
-
-/*
- * Check if this device ID matches one of supported Intel PCH devices.
- *
- * Return the ICH version if there is a match, or zero otherwise.
- */
-static inline int get_ich_version(uint16_t device_id)
-{
- if (device_id == PCI_DEVICE_ID_INTEL_TGP_LPC)
- return 7;
-
- if ((device_id >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX) ||
- (device_id >= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX))
- return 9;
-
- return 0;
-}
-
-void spi_init(void)
-{
- int ich_version = 0;
-
- uint8_t *rcrb; /* Root Complex Register Block */
- uint32_t rcba; /* Root Complex Base Address */
- uint8_t bios_cntl;
- device_t dev;
- uint32_t ids;
- uint16_t vendor_id, device_id;
-
-#ifdef __SMM__
- dev = PCI_DEV(0, 31, 0);
-#else
- dev = dev_find_slot(0, PCI_DEVFN(31, 0));
-#endif
- pci_read_config_dword(dev, 0, &ids);
- vendor_id = ids;
- device_id = (ids >> 16);
-
- if (vendor_id != PCI_VENDOR_ID_INTEL) {
- printk(BIOS_DEBUG, "ICH SPI: No ICH found.\n");
- return;
- }
-
- ich_version = get_ich_version(device_id);
-
- if (!ich_version) {
- printk(BIOS_DEBUG, "ICH SPI: No known ICH found.\n");
- return;
- }
-
- pci_read_config_dword(dev, 0xf0, &rcba);
- /* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable. */
- rcrb = (uint8_t *)(rcba & 0xffffc000);
- switch (ich_version) {
- case 7:
- {
- const uint16_t ich7_spibar_offset = 0x3020;
- ich7_spi_regs *ich7_spi =
- (ich7_spi_regs *)(rcrb + ich7_spibar_offset);
-
- ichspi_lock = readw_(&ich7_spi->spis) & SPIS_LOCK;
- cntlr.opmenu = ich7_spi->opmenu;
- cntlr.menubytes = sizeof(ich7_spi->opmenu);
- cntlr.optype = &ich7_spi->optype;
- cntlr.addr = &ich7_spi->spia;
- cntlr.data = (uint8_t *)ich7_spi->spid;
- cntlr.databytes = sizeof(ich7_spi->spid);
- cntlr.status = (uint8_t *)&ich7_spi->spis;
- cntlr.control = &ich7_spi->spic;
- cntlr.bbar = &ich7_spi->bbar;
- cntlr.preop = &ich7_spi->preop;
- break;
- }
- case 9:
- {
- const uint16_t ich9_spibar_offset = 0x3800;
- ich9_spi_regs *ich9_spi =
- (ich9_spi_regs *)(rcrb + ich9_spibar_offset);
- ichspi_lock = readw_(&ich9_spi->hsfs) & HSFS_FLOCKDN;
- cntlr.opmenu = ich9_spi->opmenu;
- cntlr.menubytes = sizeof(ich9_spi->opmenu);
- cntlr.optype = &ich9_spi->optype;
- cntlr.addr = &ich9_spi->faddr;
- cntlr.data = (uint8_t *)ich9_spi->fdata;
- cntlr.databytes = sizeof(ich9_spi->fdata);
- cntlr.status = &ich9_spi->ssfs;
- cntlr.control = (uint16_t *)ich9_spi->ssfc;
- cntlr.bbar = &ich9_spi->bbar;
- cntlr.preop = &ich9_spi->preop;
- break;
- }
- default:
- printk(BIOS_DEBUG, "ICH SPI: Unrecognized ICH version %d.\n", ich_version);
- }
-
- ich_set_bbar(0);
-
- /* Disable the BIOS write protect so write commands are allowed. */
- pci_read_config_byte(dev, 0xdc, &bios_cntl);
- switch (ich_version) {
- case 9:
- /* Deassert SMM BIOS Write Protect Disable. */
- bios_cntl &= ~(1 << 5);
- break;
-
- default:
- break;
- }
- pci_write_config_byte(dev, 0xdc, bios_cntl | 0x1);
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
- return 0;
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-typedef struct spi_transaction {
- const uint8_t *out;
- uint32_t bytesout;
- uint8_t *in;
- uint32_t bytesin;
- uint8_t type;
- uint8_t opcode;
- uint32_t offset;
-} spi_transaction;
-
-static inline void spi_use_out(spi_transaction *trans, unsigned bytes)
-{
- trans->out += bytes;
- trans->bytesout -= bytes;
-}
-
-static inline void spi_use_in(spi_transaction *trans, unsigned bytes)
-{
- trans->in += bytes;
- trans->bytesin -= bytes;
-}
-
-static void spi_setup_type(spi_transaction *trans)
-{
- trans->type = 0xFF;
-
- /* Try to guess spi type from read/write sizes. */
- if (trans->bytesin == 0) {
- if (trans->bytesout >= 4)
- /*
- * If bytesin = 0 and bytesout > 4, we presume this is
- * a write data operation, which is accompanied by an
- * address.
- */
- trans->type = SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS;
- else
- trans->type = SPI_OPCODE_TYPE_WRITE_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 1) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 4) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- }
-
- /* Fast read command is called with 5 bytes instead of 4 */
- if (trans->out[0] == SPI_OPCODE_FAST_READ && trans->bytesout == 5) {
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- --trans->bytesout;
- }
-}
-
-static int spi_setup_opcode(spi_transaction *trans)
-{
- uint16_t optypes;
- uint8_t opmenu[cntlr.menubytes];
-
- trans->opcode = trans->out[0];
-
- /* Write Enable is handled as atomic prefix */
- if (trans->opcode == SPI_OPCODE_WREN)
- return 0;
-
- spi_use_out(trans, 1);
- if (!ichspi_lock) {
- /* The lock is off, so just use index 0. */
- writeb_(trans->opcode, cntlr.opmenu);
- optypes = readw_(cntlr.optype);
- optypes = (optypes & 0xfffc) | (trans->type & 0x3);
- writew_(optypes, cntlr.optype);
- return 0;
- } else {
- /* The lock is on. See if what we need is on the menu. */
- uint8_t optype;
- uint16_t opcode_index;
-
- read_reg(cntlr.opmenu, opmenu, sizeof(opmenu));
- for (opcode_index = 0; opcode_index < cntlr.menubytes;
- opcode_index++) {
- if (opmenu[opcode_index] == trans->opcode)
- break;
- }
-
- if (opcode_index == cntlr.menubytes) {
- printk(BIOS_DEBUG, "ICH SPI: Opcode %x not found\n",
- trans->opcode);
- return -1;
- }
-
- optypes = readw_(cntlr.optype);
- optype = (optypes >> (opcode_index * 2)) & 0x3;
- if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
- optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
- trans->bytesout >= 3) {
- /* We guessed wrong earlier. Fix it up. */
- trans->type = optype;
- }
- if (optype != trans->type) {
- printk(BIOS_DEBUG, "ICH SPI: Transaction doesn't fit type %d\n",
- optype);
- return -1;
- }
- return opcode_index;
- }
-}
-
-static int spi_setup_offset(spi_transaction *trans)
-{
- /* Separate the SPI address and data. */
- switch (trans->type) {
- case SPI_OPCODE_TYPE_READ_NO_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_NO_ADDRESS:
- return 0;
- case SPI_OPCODE_TYPE_READ_WITH_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS:
- trans->offset = ((uint32_t)trans->out[0] << 16) |
- ((uint32_t)trans->out[1] << 8) |
- ((uint32_t)trans->out[2] << 0);
- spi_use_out(trans, 3);
- return 1;
- default:
- printk(BIOS_DEBUG, "Unrecognized SPI transaction type %#x\n", trans->type);
- return -1;
- }
-}
-
-/*
- * Wait for up to 60ms til status register bit(s) turn 1 (in case wait_til_set
- * below is True) or 0. In case the wait was for the bit(s) to set - write
- * those bits back, which would cause resetting them.
- *
- * Return the last read status value on success or -1 on failure.
- */
-static int ich_status_poll(u16 bitmask, int wait_til_set)
-{
- int timeout = 6000; /* This will result in 60 ms */
- u16 status = 0;
-
- while (timeout--) {
- status = readb_(cntlr.status);
- if (wait_til_set ^ ((status & bitmask) == 0)) {
- if (wait_til_set)
- writeb_((status & bitmask), cntlr.status);
- return status;
- }
- udelay(10);
- }
-
- printk(BIOS_DEBUG, "ICH SPI: SCIP timeout, read %x, expected %x\n",
- status, bitmask);
- return -1;
-}
-
-int spi_xfer(struct spi_slave *slave, const void *dout,
- unsigned int bitsout, void *din, unsigned int bitsin)
-{
- uint16_t control;
- int16_t opcode_index;
- int with_address;
- int status;
-
- spi_transaction trans = {
- dout, bitsout / 8,
- din, bitsin / 8,
- 0xff, 0xff, 0
- };
-
- /* There has to always at least be an opcode. */
- if (!bitsout || !dout) {
- printk(BIOS_DEBUG, "ICH SPI: No opcode for transfer\n");
- return -1;
- }
- /* Make sure if we read something we have a place to put it. */
- if (bitsin != 0 && !din) {
- printk(BIOS_DEBUG, "ICH SPI: Read but no target buffer\n");
- return -1;
- }
- /* Right now we don't support writing partial bytes. */
- if (bitsout % 8 || bitsin % 8) {
- printk(BIOS_DEBUG, "ICH SPI: Accessing partial bytes not supported\n");
- return -1;
- }
-
- if (ich_status_poll(SPIS_SCIP, 0) == -1)
- return -1;
-
- writew_(SPIS_CDS | SPIS_FCERR, cntlr.status);
-
- spi_setup_type(&trans);
- if ((opcode_index = spi_setup_opcode(&trans)) < 0)
- return -1;
- if ((with_address = spi_setup_offset(&trans)) < 0)
- return -1;
-
- if (trans.opcode == SPI_OPCODE_WREN) {
- /*
- * Treat Write Enable as Atomic Pre-Op if possible
- * in order to prevent the Management Engine from
- * issuing a transaction between WREN and DATA.
- */
- if (!ichspi_lock)
- writew_(trans.opcode, cntlr.preop);
-
- return 0;
- }
-
- /* Preset control fields */
- control = SPIC_SCGO | ((opcode_index & 0x07) << 4);
-
- /* Issue atomic preop cycle if needed */
- if (readw_(cntlr.preop))
- control |= SPIC_ACS;
-
- if (!trans.bytesout && !trans.bytesin) {
- /* SPI addresses are 24 bit only */
- if (with_address)
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- /*
- * This is a 'no data' command (like Write Enable), its
- * bitesout size was 1, decremented to zero while executing
- * spi_setup_opcode() above. Tell the chip to send the
- * command.
- */
- writew_(control, cntlr.control);
-
- /* wait for the result */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Command transaction error\n");
- return -1;
- }
-
- goto spi_xfer_exit;
- }
-
- /*
- * Check if this is a write command attempting to transfer more bytes
- * than the controller can handle. Iterations for writes are not
- * supported here because each SPI write command needs to be preceded
- * and followed by other SPI commands, and this sequence is controlled
- * by the SPI chip driver.
- */
- if (trans.bytesout > cntlr.databytes) {
- printk(BIOS_DEBUG, "ICH SPI: Too much to write. Does your SPI chip driver use"
- " CONTROLLER_PAGE_LIMIT?\n");
- return -1;
- }
-
- /*
- * Read or write up to databytes bytes at a time until everything has
- * been sent.
- */
- while (trans.bytesout || trans.bytesin) {
- uint32_t data_length;
-
- /* SPI addresses are 24 bit only */
- if (with_address)
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- if (trans.bytesout)
- data_length = min(trans.bytesout, cntlr.databytes);
- else
- data_length = min(trans.bytesin, cntlr.databytes);
-
- /* Program data into FDATA0 to N */
- if (trans.bytesout) {
- write_reg(trans.out, cntlr.data, data_length);
- spi_use_out(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
-
- /* Add proper control fields' values */
- control &= ~((cntlr.databytes - 1) << 8);
- control |= SPIC_DS;
- control |= (data_length - 1) << 8;
-
- /* write it */
- writew_(control, cntlr.control);
-
- /* Wait for Cycle Done Status or Flash Cycle Error. */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Data transaction error\n");
- return -1;
- }
-
- if (trans.bytesin) {
- read_reg(cntlr.data, trans.in, data_length + 1);
- spi_use_in(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
- }
-
-spi_xfer_exit:
- /* Clear atomic preop now that xfer is done */
- writew_(0, cntlr.preop);
-
- return 0;
-}
diff --git a/src/southbridge/intel/ibexpeak/Makefile.inc b/src/southbridge/intel/ibexpeak/Makefile.inc
index e7f7d99a31..da9f34a8c8 100644
--- a/src/southbridge/intel/ibexpeak/Makefile.inc
+++ b/src/southbridge/intel/ibexpeak/Makefile.inc
@@ -39,8 +39,8 @@ ramstage-y += ../bd82x6x/reset.c
ramstage-y += ../bd82x6x/watchdog.c
ramstage-$(CONFIG_ELOG) += ../bd82x6x/elog.c
-ramstage-y += spi.c
-smm-$(CONFIG_SPI_FLASH_SMM) += spi.c
+ramstage-y += ../common/spi.c
+smm-$(CONFIG_SPI_FLASH_SMM) += ../common/spi.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me.c ../bd82x6x/me_8.x.c ../bd82x6x/finalize.c ../bd82x6x/pch.c
diff --git a/src/southbridge/intel/ibexpeak/spi.c b/src/southbridge/intel/ibexpeak/spi.c
deleted file mode 100644
index 7080fe147d..0000000000
--- a/src/southbridge/intel/ibexpeak/spi.c
+++ /dev/null
@@ -1,1067 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- * Copyright (C) 2009, 2010 Carl-Daniel Hailfinger
- * Copyright (C) 2011 Stefan Tauner
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/* This file is derived from the flashrom project. */
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <delay.h>
-#include <arch/io.h>
-#include <console/console.h>
-#include <device/pci_ids.h>
-#include <device/pci.h>
-#include <spi_flash.h>
-
-#include <spi-generic.h>
-#include "pch.h"
-
-#define min(a, b) ((a)<(b)?(a):(b))
-
-#define HSFC_FCYCLE_OFF 1 /* 1-2: FLASH Cycle */
-#define HSFC_FCYCLE (0x3 << HSFC_FCYCLE_OFF)
-#define HSFC_FDBC_OFF 8 /* 8-13: Flash Data Byte Count */
-#define HSFC_FDBC (0x3f << HSFC_FDBC_OFF)
-
-
-#ifdef __SMM__
-#include <arch/pci_mmio_cfg.h>
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#else /* !__SMM__ */
-#include <device/device.h>
-#include <device/pci.h>
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#endif /* !__SMM__ */
-
-static int spi_is_multichip(void);
-static struct spi_flash *spi_flash_hwseq(struct spi_slave *spi);
-
-typedef struct spi_slave ich_spi_slave;
-
-static int ichspi_lock = 0;
-
-typedef struct ich7_spi_regs {
- uint16_t spis;
- uint16_t spic;
- uint32_t spia;
- uint64_t spid[8];
- uint64_t _pad;
- uint32_t bbar;
- uint16_t preop;
- uint16_t optype;
- uint8_t opmenu[8];
-} __attribute__((packed)) ich7_spi_regs;
-
-typedef struct ich9_spi_regs {
- uint32_t bfpr;
- uint16_t hsfs;
- uint16_t hsfc;
- uint32_t faddr;
- uint32_t _reserved0;
- uint32_t fdata[16];
- uint32_t frap;
- uint32_t freg[5];
- uint32_t _reserved1[3];
- uint32_t pr[5];
- uint32_t _reserved2[2];
- uint8_t ssfs;
- uint8_t ssfc[3];
- uint16_t preop;
- uint16_t optype;
- uint8_t opmenu[8];
- uint32_t bbar;
- uint8_t _reserved3[12];
- uint32_t fdoc;
- uint32_t fdod;
- uint8_t _reserved4[8];
- uint32_t afc;
- uint32_t lvscc;
- uint32_t uvscc;
- uint8_t _reserved5[4];
- uint32_t fpb;
- uint8_t _reserved6[28];
- uint32_t srdl;
- uint32_t srdc;
- uint32_t srd;
-} __attribute__((packed)) ich9_spi_regs;
-
-typedef struct ich_spi_controller {
- int locked;
- int revision;
- uint32_t flmap0;
- uint32_t hsfs;
-
- ich9_spi_regs *ich9_spi;
- uint8_t *opmenu;
- int menubytes;
- uint16_t *preop;
- uint16_t *optype;
- uint32_t *addr;
- uint8_t *data;
- unsigned databytes;
- uint8_t *status;
- uint16_t *control;
- uint32_t *bbar;
-} ich_spi_controller;
-
-static ich_spi_controller cntlr;
-
-enum {
- SPIS_SCIP = 0x0001,
- SPIS_GRANT = 0x0002,
- SPIS_CDS = 0x0004,
- SPIS_FCERR = 0x0008,
- SSFS_AEL = 0x0010,
- SPIS_LOCK = 0x8000,
- SPIS_RESERVED_MASK = 0x7ff0,
- SSFS_RESERVED_MASK = 0x7fe2
-};
-
-enum {
- SPIC_SCGO = 0x000002,
- SPIC_ACS = 0x000004,
- SPIC_SPOP = 0x000008,
- SPIC_DBC = 0x003f00,
- SPIC_DS = 0x004000,
- SPIC_SME = 0x008000,
- SSFC_SCF_MASK = 0x070000,
- SSFC_RESERVED = 0xf80000
-};
-
-enum {
- HSFS_FDONE = 0x0001,
- HSFS_FCERR = 0x0002,
- HSFS_AEL = 0x0004,
- HSFS_BERASE_MASK = 0x0018,
- HSFS_BERASE_SHIFT = 3,
- HSFS_SCIP = 0x0020,
- HSFS_FDOPSS = 0x2000,
- HSFS_FDV = 0x4000,
- HSFS_FLOCKDN = 0x8000
-};
-
-enum {
- HSFC_FGO = 0x0001,
- HSFC_FCYCLE_MASK = 0x0006,
- HSFC_FCYCLE_SHIFT = 1,
- HSFC_FDBC_MASK = 0x3f00,
- HSFC_FDBC_SHIFT = 8,
- HSFC_FSMIE = 0x8000
-};
-
-enum {
- SPI_OPCODE_TYPE_READ_NO_ADDRESS = 0,
- SPI_OPCODE_TYPE_WRITE_NO_ADDRESS = 1,
- SPI_OPCODE_TYPE_READ_WITH_ADDRESS = 2,
- SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS = 3
-};
-
-#if CONFIG_DEBUG_SPI_FLASH
-
-static u8 readb_(const void *addr)
-{
- u8 v = read8((unsigned long)addr);
- printk(BIOS_DEBUG, "read %2.2x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static u16 readw_(const void *addr)
-{
- u16 v = read16((unsigned long)addr);
- printk(BIOS_DEBUG, "read %4.4x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static u32 readl_(const void *addr)
-{
- u32 v = read32((unsigned long)addr);
- printk(BIOS_DEBUG, "read %8.8x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static void writeb_(u8 b, const void *addr)
-{
- write8((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %2.2x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-static void writew_(u16 b, const void *addr)
-{
- write16((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %4.4x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-static void writel_(u32 b, const void *addr)
-{
- write32((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %8.8x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-#else /* CONFIG_DEBUG_SPI_FLASH ^^^ enabled vvv NOT enabled */
-
-#define readb_(a) read8((uint32_t)a)
-#define readw_(a) read16((uint32_t)a)
-#define readl_(a) read32((uint32_t)a)
-#define writeb_(val, addr) write8((uint32_t)addr, val)
-#define writew_(val, addr) write16((uint32_t)addr, val)
-#define writel_(val, addr) write32((uint32_t)addr, val)
-
-#endif /* CONFIG_DEBUG_SPI_FLASH ^^^ NOT enabled */
-
-static void write_reg(const void *value, void *dest, uint32_t size)
-{
- const uint8_t *bvalue = value;
- uint8_t *bdest = dest;
-
- while (size >= 4) {
- writel_(*(const uint32_t *)bvalue, bdest);
- bdest += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- writeb_(*bvalue, bdest);
- bdest++; bvalue++; size--;
- }
-}
-
-static void read_reg(const void *src, void *value, uint32_t size)
-{
- const uint8_t *bsrc = src;
- uint8_t *bvalue = value;
-
- while (size >= 4) {
- *(uint32_t *)bvalue = readl_(bsrc);
- bsrc += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- *bvalue = readb_(bsrc);
- bsrc++; bvalue++; size--;
- }
-}
-
-static void ich_set_bbar(uint32_t minaddr)
-{
- const uint32_t bbar_mask = 0x00ffff00;
- uint32_t ichspi_bbar;
-
- minaddr &= bbar_mask;
- ichspi_bbar = readl_(cntlr.bbar) & ~bbar_mask;
- ichspi_bbar |= minaddr;
- writel_(ichspi_bbar, cntlr.bbar);
-}
-
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
- printk(BIOS_DEBUG, "spi_cs_is_valid used but not implemented\n");
- return 0;
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
-{
- ich_spi_slave *slave = malloc(sizeof(*slave));
-
- if (!slave) {
- printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n");
- return NULL;
- }
-
- memset(slave, 0, sizeof(*slave));
-
- slave->bus = bus;
- slave->cs = cs;
- if (cntlr.revision == 9) {
- slave->force_programmer_specific = spi_is_multichip ();
- slave->programmer_specific_probe = spi_flash_hwseq;
- }
- return slave;
-}
-
-/*
- * Check if this device ID matches one of supported Intel PCH devices.
- *
- * Return the ICH version if there is a match, or zero otherwise.
- */
-static inline int get_ich_version(uint16_t device_id)
-{
- if (device_id == PCI_DEVICE_ID_INTEL_TGP_LPC)
- return 7;
-
- if ((device_id >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX) ||
- (device_id >= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN &&
- device_id <= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX)
- || device_id == 0x3b07)
- return 9;
-
- return 0;
-}
-
-void spi_init(void)
-{
- int ich_version = 0;
-
- uint8_t *rcrb; /* Root Complex Register Block */
- uint32_t rcba; /* Root Complex Base Address */
- uint8_t bios_cntl;
- device_t dev;
- uint32_t ids;
- uint16_t vendor_id, device_id;
-
-#ifdef __SMM__
- dev = PCI_DEV(0, 31, 0);
-#else
- dev = dev_find_slot(0, PCI_DEVFN(31, 0));
-#endif
- pci_read_config_dword(dev, 0, &ids);
- vendor_id = ids;
- device_id = (ids >> 16);
-
- if (vendor_id != PCI_VENDOR_ID_INTEL) {
- printk(BIOS_DEBUG, "ICH SPI: No ICH found.\n");
- return;
- }
-
- ich_version = get_ich_version(device_id);
-
- if (!ich_version) {
- printk(BIOS_DEBUG, "ICH SPI: No known ICH found.\n");
- return;
- }
-
- pci_read_config_dword(dev, 0xf0, &rcba);
- /* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable. */
- rcrb = (uint8_t *)(rcba & 0xffffc000);
- cntlr.revision = ich_version;
- switch (ich_version) {
- case 7:
- {
- const uint16_t ich7_spibar_offset = 0x3020;
- ich7_spi_regs *ich7_spi =
- (ich7_spi_regs *)(rcrb + ich7_spibar_offset);
-
- ichspi_lock = readw_(&ich7_spi->spis) & SPIS_LOCK;
- cntlr.opmenu = ich7_spi->opmenu;
- cntlr.menubytes = sizeof(ich7_spi->opmenu);
- cntlr.optype = &ich7_spi->optype;
- cntlr.addr = &ich7_spi->spia;
- cntlr.data = (uint8_t *)ich7_spi->spid;
- cntlr.databytes = sizeof(ich7_spi->spid);
- cntlr.status = (uint8_t *)&ich7_spi->spis;
- cntlr.control = &ich7_spi->spic;
- cntlr.bbar = &ich7_spi->bbar;
- cntlr.preop = &ich7_spi->preop;
- break;
- }
- case 9:
- {
- const uint16_t ich9_spibar_offset = 0x3800;
- ich9_spi_regs *ich9_spi =
- (ich9_spi_regs *)(rcrb + ich9_spibar_offset);
- uint16_t hsfs;
- cntlr.ich9_spi = ich9_spi;
- hsfs = readw_(&ich9_spi->hsfs);
- ichspi_lock = hsfs & HSFS_FLOCKDN;
- cntlr.hsfs = hsfs;
- cntlr.opmenu = ich9_spi->opmenu;
- cntlr.menubytes = sizeof(ich9_spi->opmenu);
- cntlr.optype = &ich9_spi->optype;
- cntlr.addr = &ich9_spi->faddr;
- cntlr.data = (uint8_t *)ich9_spi->fdata;
- cntlr.databytes = sizeof(ich9_spi->fdata);
- cntlr.status = &ich9_spi->ssfs;
- cntlr.control = (uint16_t *)ich9_spi->ssfc;
- cntlr.bbar = &ich9_spi->bbar;
- cntlr.preop = &ich9_spi->preop;
-
- if (cntlr.hsfs & HSFS_FDV)
- {
- writel_ (4, &ich9_spi->fdoc);
- cntlr.flmap0 = readl_(&ich9_spi->fdod);
- }
- break;
- }
- default:
- printk(BIOS_DEBUG, "ICH SPI: Unrecognized ICH version %d.\n", ich_version);
- }
-
- ich_set_bbar(0);
-
- /* Disable the BIOS write protect so write commands are allowed. */
- pci_read_config_byte(dev, 0xdc, &bios_cntl);
- switch (ich_version) {
- case 9:
- /* Deassert SMM BIOS Write Protect Disable. */
- bios_cntl &= ~(1 << 5);
- break;
-
- default:
- break;
- }
- pci_write_config_byte(dev, 0xdc, bios_cntl | 0x1);
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
- return 0;
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-typedef struct spi_transaction {
- const uint8_t *out;
- uint32_t bytesout;
- uint8_t *in;
- uint32_t bytesin;
- uint8_t type;
- uint8_t opcode;
- uint32_t offset;
-} spi_transaction;
-
-static inline void spi_use_out(spi_transaction *trans, unsigned bytes)
-{
- trans->out += bytes;
- trans->bytesout -= bytes;
-}
-
-static inline void spi_use_in(spi_transaction *trans, unsigned bytes)
-{
- trans->in += bytes;
- trans->bytesin -= bytes;
-}
-
-static void spi_setup_type(spi_transaction *trans)
-{
- trans->type = 0xFF;
-
- /* Try to guess spi type from read/write sizes. */
- if (trans->bytesin == 0) {
- if (trans->bytesout > 4)
- /*
- * If bytesin = 0 and bytesout > 4, we presume this is
- * a write data operation, which is accompanied by an
- * address.
- */
- trans->type = SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS;
- else
- trans->type = SPI_OPCODE_TYPE_WRITE_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 1) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 4) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- }
-
- /* Fast read command is called with 5 bytes instead of 4 */
- if (trans->out[0] == SPI_OPCODE_FAST_READ && trans->bytesout == 5) {
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- --trans->bytesout;
- }
-}
-
-static int spi_setup_opcode(spi_transaction *trans)
-{
- uint16_t optypes;
- uint8_t opmenu[cntlr.menubytes];
-
- trans->opcode = trans->out[0];
- spi_use_out(trans, 1);
- if (!ichspi_lock) {
- /* The lock is off, so just use index 0. */
- writeb_(trans->opcode, cntlr.opmenu);
- optypes = readw_(cntlr.optype);
- optypes = (optypes & 0xfffc) | (trans->type & 0x3);
- writew_(optypes, cntlr.optype);
- return 0;
- } else {
- /* The lock is on. See if what we need is on the menu. */
- uint8_t optype;
- uint16_t opcode_index;
-
- /* Write Enable is handled as atomic prefix */
- if (trans->opcode == SPI_OPCODE_WREN)
- return 0;
-
- read_reg(cntlr.opmenu, opmenu, sizeof(opmenu));
- for (opcode_index = 0; opcode_index < cntlr.menubytes;
- opcode_index++) {
- if (opmenu[opcode_index] == trans->opcode)
- break;
- }
-
- if (opcode_index == cntlr.menubytes) {
- printk(BIOS_DEBUG, "ICH SPI: Opcode %x not found\n",
- trans->opcode);
- return -1;
- }
-
- optypes = readw_(cntlr.optype);
- optype = (optypes >> (opcode_index * 2)) & 0x3;
- if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
- optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
- trans->bytesout >= 3) {
- /* We guessed wrong earlier. Fix it up. */
- trans->type = optype;
- }
- if (optype != trans->type) {
- printk(BIOS_DEBUG, "ICH SPI: Transaction doesn't fit type %d\n",
- optype);
- return -1;
- }
- return opcode_index;
- }
-}
-
-static int spi_setup_offset(spi_transaction *trans)
-{
- /* Separate the SPI address and data. */
- switch (trans->type) {
- case SPI_OPCODE_TYPE_READ_NO_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_NO_ADDRESS:
- return 0;
- case SPI_OPCODE_TYPE_READ_WITH_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS:
- trans->offset = ((uint32_t)trans->out[0] << 16) |
- ((uint32_t)trans->out[1] << 8) |
- ((uint32_t)trans->out[2] << 0);
- spi_use_out(trans, 3);
- return 1;
- default:
- printk(BIOS_DEBUG, "Unrecognized SPI transaction type %#x\n", trans->type);
- return -1;
- }
-}
-
-/*
- * Wait for up to 60ms til status register bit(s) turn 1 (in case wait_til_set
- * below is True) or 0. In case the wait was for the bit(s) to set - write
- * those bits back, which would cause resetting them.
- *
- * Return the last read status value on success or -1 on failure.
- */
-static int ich_status_poll(u16 bitmask, int wait_til_set)
-{
- int timeout = 6000; /* This will result in 60 ms */
- u16 status = 0;
-
- while (timeout--) {
- status = readw_(cntlr.status);
- if (wait_til_set ^ ((status & bitmask) == 0)) {
- if (wait_til_set)
- writew_((status & bitmask), cntlr.status);
- return status;
- }
- udelay(10);
- }
-
- printk(BIOS_DEBUG, "ICH SPI: SCIP timeout, read %x, expected %x\n",
- status, bitmask);
- return -1;
-}
-
-static int spi_is_multichip (void)
-{
- if (cntlr.revision != 9)
- return 0;
- if (!(cntlr.hsfs & HSFS_FDV))
- return 0;
- return !!((cntlr.flmap0 >> 8) & 3);
-}
-
-int spi_xfer(struct spi_slave *slave, const void *dout,
- unsigned int bitsout, void *din, unsigned int bitsin)
-{
- uint16_t control;
- int16_t opcode_index;
- int with_address;
- int status;
-
- spi_transaction trans = {
- dout, bitsout / 8,
- din, bitsin / 8,
- 0xff, 0xff, 0
- };
-
- /* There has to always at least be an opcode. */
- if (!bitsout || !dout) {
- printk(BIOS_DEBUG, "ICH SPI: No opcode for transfer\n");
- return -1;
- }
- /* Make sure if we read something we have a place to put it. */
- if (bitsin != 0 && !din) {
- printk(BIOS_DEBUG, "ICH SPI: Read but no target buffer\n");
- return -1;
- }
- /* Right now we don't support writing partial bytes. */
- if (bitsout % 8 || bitsin % 8) {
- printk(BIOS_DEBUG, "ICH SPI: Accessing partial bytes not supported\n");
- return -1;
- }
-
- if (ich_status_poll(SPIS_SCIP, 0) == -1)
- return -1;
-
- writew_(SPIS_CDS | SPIS_FCERR, cntlr.status);
-
- spi_setup_type(&trans);
- if ((opcode_index = spi_setup_opcode(&trans)) < 0)
- return -1;
- if ((with_address = spi_setup_offset(&trans)) < 0)
- return -1;
-
- if (trans.opcode == SPI_OPCODE_WREN) {
- /*
- * Treat Write Enable as Atomic Pre-Op if possible
- * in order to prevent the Management Engine from
- * issuing a transaction between WREN and DATA.
- */
- if (!ichspi_lock)
- writew_(trans.opcode, cntlr.preop);
- return 0;
- }
-
- /* Preset control fields */
- control = SPIC_SCGO | ((opcode_index & 0x07) << 4);
-
- /* Issue atomic preop cycle if needed */
- if (readw_(cntlr.preop))
- control |= SPIC_ACS;
-
- if (!trans.bytesout && !trans.bytesin) {
- /* SPI addresses are 24 bit only */
- if (with_address)
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- /*
- * This is a 'no data' command (like Write Enable), its
- * bitesout size was 1, decremented to zero while executing
- * spi_setup_opcode() above. Tell the chip to send the
- * command.
- */
- writew_(control, cntlr.control);
-
- /* wait for the result */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Command transaction error\n");
- return -1;
- }
-
- return 0;
- }
-
- /*
- * Check if this is a write command attempting to transfer more bytes
- * than the controller can handle. Iterations for writes are not
- * supported here because each SPI write command needs to be preceded
- * and followed by other SPI commands, and this sequence is controlled
- * by the SPI chip driver.
- */
- if (trans.bytesout > cntlr.databytes) {
- printk(BIOS_DEBUG, "ICH SPI: Too much to write. Does your SPI chip driver use"
- " CONTROLLER_PAGE_LIMIT?\n");
- return -1;
- }
-
- /*
- * Read or write up to databytes bytes at a time until everything has
- * been sent.
- */
- while (trans.bytesout || trans.bytesin) {
- uint32_t data_length;
-
- /* SPI addresses are 24 bit only */
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- if (trans.bytesout)
- data_length = min(trans.bytesout, cntlr.databytes);
- else
- data_length = min(trans.bytesin, cntlr.databytes);
-
- /* Program data into FDATA0 to N */
- if (trans.bytesout) {
- write_reg(trans.out, cntlr.data, data_length);
- spi_use_out(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
-
- /* Add proper control fields' values */
- control &= ~((cntlr.databytes - 1) << 8);
- control |= SPIC_DS;
- control |= (data_length - 1) << 8;
-
- /* write it */
- writew_(control, cntlr.control);
-
- /* Wait for Cycle Done Status or Flash Cycle Error. */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Data transaction error\n");
- return -1;
- }
-
- if (trans.bytesin) {
- read_reg(cntlr.data, trans.in, data_length);
- spi_use_in(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
- }
-
- /* Clear atomic preop now that xfer is done */
- writew_(0, cntlr.preop);
-
- return 0;
-}
-
-/* Sets FLA in FADDR to (addr & 0x01FFFFFF) without touching other bits. */
-static void ich_hwseq_set_addr(uint32_t addr)
-{
- uint32_t addr_old = readl_(&cntlr.ich9_spi->faddr) & ~0x01FFFFFF;
- writel_((addr & 0x01FFFFFF) | addr_old, &cntlr.ich9_spi->faddr);
-}
-
-/* Polls for Cycle Done Status, Flash Cycle Error or timeout in 8 us intervals.
- Resets all error flags in HSFS.
- Returns 0 if the cycle completes successfully without errors within
- timeout us, 1 on errors. */
-static int ich_hwseq_wait_for_cycle_complete(unsigned int timeout,
- unsigned int len)
-{
- uint16_t hsfs;
- uint32_t addr;
-
- timeout /= 8; /* scale timeout duration to counter */
- while ((((hsfs = readw_(&cntlr.ich9_spi->hsfs)) &
- (HSFS_FDONE | HSFS_FCERR)) == 0) &&
- --timeout) {
- udelay(8);
- }
- writew_(readw_(&cntlr.ich9_spi->hsfs), &cntlr.ich9_spi->hsfs);
-
- if (!timeout) {
- uint16_t hsfc;
- addr = readl_(&cntlr.ich9_spi->faddr) & 0x01FFFFFF;
- hsfc = readw_(&cntlr.ich9_spi->hsfc);
- printk(BIOS_ERR, "Transaction timeout between offset 0x%08x and "
- "0x%08x (= 0x%08x + %d) HSFC=%x HSFS=%x!\n",
- addr, addr + len - 1, addr, len - 1,
- hsfc, hsfs);
- return 1;
- }
-
- if (hsfs & HSFS_FCERR) {
- uint16_t hsfc;
- addr = readl_(&cntlr.ich9_spi->faddr) & 0x01FFFFFF;
- hsfc = readw_(&cntlr.ich9_spi->hsfc);
- printk(BIOS_ERR, "Transaction error between offset 0x%08x and "
- "0x%08x (= 0x%08x + %d) HSFC=%x HSFS=%x!\n",
- addr, addr + len - 1, addr, len - 1,
- hsfc, hsfs);
- return 1;
- }
- return 0;
-}
-
-
-static int ich_hwseq_erase(struct spi_flash *flash, u32 offset, size_t len)
-{
- u32 start, end, erase_size;
- int ret;
- uint16_t hsfc;
- uint16_t timeout = 1000 * 60;
-
- erase_size = flash->sector_size;
- if (offset % erase_size || len % erase_size) {
- printk(BIOS_ERR, "SF: Erase offset/length not multiple of erase size\n");
- return -1;
- }
-
- flash->spi->rw = SPI_WRITE_FLAG;
- ret = spi_claim_bus(flash->spi);
- if (ret) {
- printk(BIOS_ERR, "SF: Unable to claim SPI bus\n");
- return ret;
- }
-
- start = offset;
- end = start + len;
-
- while (offset < end) {
- /* make sure FDONE, FCERR, AEL are cleared by writing 1 to them */
- writew_(readw_(&cntlr.ich9_spi->hsfs), &cntlr.ich9_spi->hsfs);
-
- ich_hwseq_set_addr(offset);
-
- offset += erase_size;
-
- hsfc = readw_(&cntlr.ich9_spi->hsfc);
- hsfc &= ~HSFC_FCYCLE; /* clear operation */
- hsfc |= (0x3 << HSFC_FCYCLE_OFF); /* set erase operation */
- hsfc |= HSFC_FGO; /* start */
- writew_(hsfc, &cntlr.ich9_spi->hsfc);
- if (ich_hwseq_wait_for_cycle_complete(timeout, len))
- {
- printk(BIOS_ERR, "SF: Erase failed at %x\n", offset - erase_size);
- ret = -1;
- goto out;
- }
- }
-
- printk(BIOS_DEBUG, "SF: Successfully erased %zu bytes @ %#x\n", len, start);
-
-out:
- spi_release_bus(flash->spi);
- return ret;
-}
-
-static void ich_read_data(uint8_t *data, int len)
-{
- int i;
- uint32_t temp32 = 0;
-
- for (i = 0; i < len; i++) {
- if ((i % 4) == 0)
- temp32 = readl_(cntlr.data + i);
-
- data[i] = (temp32 >> ((i % 4) * 8)) & 0xff;
- }
-}
-
-static int ich_hwseq_read(struct spi_flash *flash,
- u32 addr, size_t len, void *buf)
-{
- uint16_t hsfc;
- uint16_t timeout = 100 * 60;
- uint8_t block_len;
-
- if (addr + len > flash->size) {
- printk (BIOS_ERR,
- "Attempt to read %x-%x which is out of chip\n",
- (unsigned) addr,
- (unsigned) addr+(unsigned) len);
- return -1;
- }
-
- /* clear FDONE, FCERR, AEL by writing 1 to them (if they are set) */
- writew_(readw_(&cntlr.ich9_spi->hsfs), &cntlr.ich9_spi->hsfs);
-
- while (len > 0) {
- block_len = min(len, cntlr.databytes);
- if (block_len > (~addr & 0xff))
- block_len = (~addr & 0xff) + 1;
- ich_hwseq_set_addr(addr);
- hsfc = readw_(&cntlr.ich9_spi->hsfc);
- hsfc &= ~HSFC_FCYCLE; /* set read operation */
- hsfc &= ~HSFC_FDBC; /* clear byte count */
- /* set byte count */
- hsfc |= (((block_len - 1) << HSFC_FDBC_OFF) & HSFC_FDBC);
- hsfc |= HSFC_FGO; /* start */
- writew_(hsfc, &cntlr.ich9_spi->hsfc);
-
- if (ich_hwseq_wait_for_cycle_complete(timeout, block_len))
- return 1;
- ich_read_data(buf, block_len);
- addr += block_len;
- buf += block_len;
- len -= block_len;
- }
- return 0;
-}
-
-/* Fill len bytes from the data array into the fdata/spid registers.
- *
- * Note that using len > flash->pgm->spi.max_data_write will trash the registers
- * following the data registers.
- */
-static void ich_fill_data(const uint8_t *data, int len)
-{
- uint32_t temp32 = 0;
- int i;
-
- if (len <= 0)
- return;
-
- for (i = 0; i < len; i++) {
- if ((i % 4) == 0)
- temp32 = 0;
-
- temp32 |= ((uint32_t) data[i]) << ((i % 4) * 8);
-
- if ((i % 4) == 3) /* 32 bits are full, write them to regs. */
- writel_(temp32, cntlr.data + (i - (i % 4)));
- }
- i--;
- if ((i % 4) != 3) /* Write remaining data to regs. */
- writel_(temp32, cntlr.data + (i - (i % 4)));
-}
-
-static int ich_hwseq_write(struct spi_flash *flash,
- u32 addr, size_t len, const void *buf)
-{
- uint16_t hsfc;
- uint16_t timeout = 100 * 60;
- uint8_t block_len;
- uint32_t start = addr;
-
- if (addr + len > flash->size) {
- printk (BIOS_ERR,
- "Attempt to write 0x%x-0x%x which is out of chip\n",
- (unsigned)addr, (unsigned) (addr+len));
- return -1;
- }
-
- /* clear FDONE, FCERR, AEL by writing 1 to them (if they are set) */
- writew_(readw_(&cntlr.ich9_spi->hsfs), &cntlr.ich9_spi->hsfs);
-
- while (len > 0) {
- block_len = min(len, cntlr.databytes);
- if (block_len > (~addr & 0xff))
- block_len = (~addr & 0xff) + 1;
-
- ich_hwseq_set_addr(addr);
-
- ich_fill_data(buf, block_len);
- hsfc = readw_(&cntlr.ich9_spi->hsfc);
- hsfc &= ~HSFC_FCYCLE; /* clear operation */
- hsfc |= (0x2 << HSFC_FCYCLE_OFF); /* set write operation */
- hsfc &= ~HSFC_FDBC; /* clear byte count */
- /* set byte count */
- hsfc |= (((block_len - 1) << HSFC_FDBC_OFF) & HSFC_FDBC);
- hsfc |= HSFC_FGO; /* start */
- writew_(hsfc, &cntlr.ich9_spi->hsfc);
-
- if (ich_hwseq_wait_for_cycle_complete(timeout, block_len))
- {
- printk (BIOS_ERR, "SF: write failure at %x\n",
- addr);
- return -1;
- }
- addr += block_len;
- buf += block_len;
- len -= block_len;
- }
- printk(BIOS_DEBUG, "SF: Successfully written %u bytes @ %#x\n",
- (unsigned) (addr - start), start);
- return 0;
-}
-
-
-static struct spi_flash *spi_flash_hwseq(struct spi_slave *spi)
-{
- struct spi_flash *flash = NULL;
- uint32_t flcomp;
-
- flash = malloc(sizeof(*flash));
- if (!flash) {
- printk(BIOS_WARNING, "SF: Failed to allocate memory\n");
- return NULL;
- }
-
- flash->spi = spi;
- flash->name = "Opaque HW-sequencing";
-
- flash->write = ich_hwseq_write;
- flash->erase = ich_hwseq_erase;
- flash->read = ich_hwseq_read;
- ich_hwseq_set_addr (0);
- switch ((cntlr.hsfs >> 3) & 3)
- {
- case 0:
- flash->sector_size = 256;
- break;
- case 1:
- flash->sector_size = 4096;
- break;
- case 2:
- flash->sector_size = 8192;
- break;
- case 3:
- flash->sector_size = 65536;
- break;
- }
-
- writel_ (0x1000, &cntlr.ich9_spi->fdoc);
- flcomp = readl_(&cntlr.ich9_spi->fdod);
-
- flash->size = 1 << (19 + (flcomp & 7));
-
- if ((cntlr.hsfs & HSFS_FDV) && ((cntlr.flmap0 >> 8) & 3))
- flash->size += 1 << (19 + ((flcomp >> 3) & 7));
- printk (BIOS_DEBUG, "flash size 0x%x bytes\n", flash->size);
-
- return flash;
-}
diff --git a/src/southbridge/intel/lynxpoint/Makefile.inc b/src/southbridge/intel/lynxpoint/Makefile.inc
index b691e6f2a4..ce948f410a 100644
--- a/src/southbridge/intel/lynxpoint/Makefile.inc
+++ b/src/southbridge/intel/lynxpoint/Makefile.inc
@@ -43,8 +43,8 @@ ramstage-y += watchdog.c
ramstage-y += acpi.c
ramstage-$(CONFIG_ELOG) += elog.c
-ramstage-y += spi.c
-smm-$(CONFIG_SPI_FLASH_SMM) += spi.c
+ramstage-y += ../common/spi.c
+smm-$(CONFIG_SPI_FLASH_SMM) += ../common/spi.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c pmutil.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me_9.x.c finalize.c pch.c
diff --git a/src/southbridge/intel/lynxpoint/spi.c b/src/southbridge/intel/lynxpoint/spi.c
deleted file mode 100644
index 5501efcbf0..0000000000
--- a/src/southbridge/intel/lynxpoint/spi.c
+++ /dev/null
@@ -1,657 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/* This file is derived from the flashrom project. */
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <delay.h>
-#include <arch/io.h>
-#include <console/console.h>
-#include <device/pci_ids.h>
-
-#include <spi-generic.h>
-
-#define min(a, b) ((a)<(b)?(a):(b))
-
-#ifdef __SMM__
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#else /* !__SMM__ */
-#include <device/device.h>
-#include <device/pci.h>
-#define pci_read_config_byte(dev, reg, targ)\
- *(targ) = pci_read_config8(dev, reg)
-#define pci_read_config_word(dev, reg, targ)\
- *(targ) = pci_read_config16(dev, reg)
-#define pci_read_config_dword(dev, reg, targ)\
- *(targ) = pci_read_config32(dev, reg)
-#define pci_write_config_byte(dev, reg, val)\
- pci_write_config8(dev, reg, val)
-#define pci_write_config_word(dev, reg, val)\
- pci_write_config16(dev, reg, val)
-#define pci_write_config_dword(dev, reg, val)\
- pci_write_config32(dev, reg, val)
-#endif /* !__SMM__ */
-
-typedef struct spi_slave ich_spi_slave;
-
-static int ichspi_lock = 0;
-
-typedef struct ich9_spi_regs {
- uint32_t bfpr;
- uint16_t hsfs;
- uint16_t hsfc;
- uint32_t faddr;
- uint32_t _reserved0;
- uint32_t fdata[16];
- uint32_t frap;
- uint32_t freg[5];
- uint32_t _reserved1[3];
- uint32_t pr[5];
- uint32_t _reserved2[2];
- uint8_t ssfs;
- uint8_t ssfc[3];
- uint16_t preop;
- uint16_t optype;
- uint8_t opmenu[8];
- uint32_t bbar;
- uint8_t _reserved3[12];
- uint32_t fdoc;
- uint32_t fdod;
- uint8_t _reserved4[8];
- uint32_t afc;
- uint32_t lvscc;
- uint32_t uvscc;
- uint8_t _reserved5[4];
- uint32_t fpb;
- uint8_t _reserved6[28];
- uint32_t srdl;
- uint32_t srdc;
- uint32_t srd;
-} __attribute__((packed)) ich9_spi_regs;
-
-typedef struct ich_spi_controller {
- int locked;
-
- uint8_t *opmenu;
- int menubytes;
- uint16_t *preop;
- uint16_t *optype;
- uint32_t *addr;
- uint8_t *data;
- unsigned databytes;
- uint8_t *status;
- uint16_t *control;
- uint32_t *bbar;
-} ich_spi_controller;
-
-static ich_spi_controller cntlr;
-
-enum {
- SPIS_SCIP = 0x0001,
- SPIS_GRANT = 0x0002,
- SPIS_CDS = 0x0004,
- SPIS_FCERR = 0x0008,
- SSFS_AEL = 0x0010,
- SPIS_LOCK = 0x8000,
- SPIS_RESERVED_MASK = 0x7ff0,
- SSFS_RESERVED_MASK = 0x7fe2
-};
-
-enum {
- SPIC_SCGO = 0x000002,
- SPIC_ACS = 0x000004,
- SPIC_SPOP = 0x000008,
- SPIC_DBC = 0x003f00,
- SPIC_DS = 0x004000,
- SPIC_SME = 0x008000,
- SSFC_SCF_MASK = 0x070000,
- SSFC_RESERVED = 0xf80000
-};
-
-enum {
- HSFS_FDONE = 0x0001,
- HSFS_FCERR = 0x0002,
- HSFS_AEL = 0x0004,
- HSFS_BERASE_MASK = 0x0018,
- HSFS_BERASE_SHIFT = 3,
- HSFS_SCIP = 0x0020,
- HSFS_FDOPSS = 0x2000,
- HSFS_FDV = 0x4000,
- HSFS_FLOCKDN = 0x8000
-};
-
-enum {
- HSFC_FGO = 0x0001,
- HSFC_FCYCLE_MASK = 0x0006,
- HSFC_FCYCLE_SHIFT = 1,
- HSFC_FDBC_MASK = 0x3f00,
- HSFC_FDBC_SHIFT = 8,
- HSFC_FSMIE = 0x8000
-};
-
-enum {
- SPI_OPCODE_TYPE_READ_NO_ADDRESS = 0,
- SPI_OPCODE_TYPE_WRITE_NO_ADDRESS = 1,
- SPI_OPCODE_TYPE_READ_WITH_ADDRESS = 2,
- SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS = 3
-};
-
-#if CONFIG_DEBUG_SPI_FLASH
-
-static u8 readb_(const void *addr)
-{
- u8 v = read8((unsigned long)addr);
- printk(BIOS_DEBUG, "read %2.2x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static u16 readw_(const void *addr)
-{
- u16 v = read16((unsigned long)addr);
- printk(BIOS_DEBUG, "read %4.4x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static u32 readl_(const void *addr)
-{
- u32 v = read32((unsigned long)addr);
- printk(BIOS_DEBUG, "read %8.8x from %4.4x\n",
- v, ((unsigned) addr & 0xffff) - 0xf020);
- return v;
-}
-
-static void writeb_(u8 b, const void *addr)
-{
- write8((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %2.2x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-static void writew_(u16 b, const void *addr)
-{
- write16((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %4.4x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-static void writel_(u32 b, const void *addr)
-{
- write32((unsigned long)addr, b);
- printk(BIOS_DEBUG, "wrote %8.8x to %4.4x\n",
- b, ((unsigned) addr & 0xffff) - 0xf020);
-}
-
-#else /* CONFIG_DEBUG_SPI_FLASH ^^^ enabled vvv NOT enabled */
-
-#define readb_(a) read8((uint32_t)a)
-#define readw_(a) read16((uint32_t)a)
-#define readl_(a) read32((uint32_t)a)
-#define writeb_(val, addr) write8((uint32_t)addr, val)
-#define writew_(val, addr) write16((uint32_t)addr, val)
-#define writel_(val, addr) write32((uint32_t)addr, val)
-
-#endif /* CONFIG_DEBUG_SPI_FLASH ^^^ NOT enabled */
-
-static void write_reg(const void *value, void *dest, uint32_t size)
-{
- const uint8_t *bvalue = value;
- uint8_t *bdest = dest;
-
- while (size >= 4) {
- writel_(*(const uint32_t *)bvalue, bdest);
- bdest += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- writeb_(*bvalue, bdest);
- bdest++; bvalue++; size--;
- }
-}
-
-static void read_reg(const void *src, void *value, uint32_t size)
-{
- const uint8_t *bsrc = src;
- uint8_t *bvalue = value;
-
- while (size >= 4) {
- *(uint32_t *)bvalue = readl_(bsrc);
- bsrc += 4; bvalue += 4; size -= 4;
- }
- while (size) {
- *bvalue = readb_(bsrc);
- bsrc++; bvalue++; size--;
- }
-}
-
-static void ich_set_bbar(uint32_t minaddr)
-{
- const uint32_t bbar_mask = 0x00ffff00;
- uint32_t ichspi_bbar;
-
- minaddr &= bbar_mask;
- ichspi_bbar = readl_(cntlr.bbar) & ~bbar_mask;
- ichspi_bbar |= minaddr;
- writel_(ichspi_bbar, cntlr.bbar);
-}
-
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
- printk(BIOS_DEBUG, "spi_cs_is_valid used but not implemented\n");
- return 0;
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
-{
- ich_spi_slave *slave = malloc(sizeof(*slave));
-
- if (!slave) {
- printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n");
- return NULL;
- }
-
- memset(slave, 0, sizeof(*slave));
-
- slave->bus = bus;
- slave->cs = cs;
- return slave;
-}
-
-void spi_init(void)
-{
- uint8_t *rcrb; /* Root Complex Register Block */
- uint32_t rcba; /* Root Complex Base Address */
- uint8_t bios_cntl;
- device_t dev;
- ich9_spi_regs *ich9_spi;
-
-#ifdef __SMM__
- dev = PCI_DEV(0, 31, 0);
-#else
- dev = dev_find_slot(0, PCI_DEVFN(31, 0));
-#endif
-
- pci_read_config_dword(dev, 0xf0, &rcba);
- /* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable. */
- rcrb = (uint8_t *)(rcba & 0xffffc000);
- ich9_spi = (ich9_spi_regs *)(rcrb + 0x3800);
- ichspi_lock = readw_(&ich9_spi->hsfs) & HSFS_FLOCKDN;
- cntlr.opmenu = ich9_spi->opmenu;
- cntlr.menubytes = sizeof(ich9_spi->opmenu);
- cntlr.optype = &ich9_spi->optype;
- cntlr.addr = &ich9_spi->faddr;
- cntlr.data = (uint8_t *)ich9_spi->fdata;
- cntlr.databytes = sizeof(ich9_spi->fdata);
- cntlr.status = &ich9_spi->ssfs;
- cntlr.control = (uint16_t *)ich9_spi->ssfc;
- cntlr.bbar = &ich9_spi->bbar;
- cntlr.preop = &ich9_spi->preop;
- ich_set_bbar(0);
-
- /* Disable the BIOS write protect so write commands are allowed. */
- pci_read_config_byte(dev, 0xdc, &bios_cntl);
- bios_cntl &= ~(1 << 5);
- pci_write_config_byte(dev, 0xdc, bios_cntl | 0x1);
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
- return 0;
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
- /* Handled by ICH automatically. */
-}
-
-typedef struct spi_transaction {
- const uint8_t *out;
- uint32_t bytesout;
- uint8_t *in;
- uint32_t bytesin;
- uint8_t type;
- uint8_t opcode;
- uint32_t offset;
-} spi_transaction;
-
-static inline void spi_use_out(spi_transaction *trans, unsigned bytes)
-{
- trans->out += bytes;
- trans->bytesout -= bytes;
-}
-
-static inline void spi_use_in(spi_transaction *trans, unsigned bytes)
-{
- trans->in += bytes;
- trans->bytesin -= bytes;
-}
-
-static void spi_setup_type(spi_transaction *trans)
-{
- trans->type = 0xFF;
-
- /* Try to guess spi type from read/write sizes. */
- if (trans->bytesin == 0) {
- if (trans->bytesout > 4)
- /*
- * If bytesin = 0 and bytesout > 4, we presume this is
- * a write data operation, which is accompanied by an
- * address.
- */
- trans->type = SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS;
- else
- trans->type = SPI_OPCODE_TYPE_WRITE_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 1) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 4) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- }
-
- /* Fast read command is called with 5 bytes instead of 4 */
- if (trans->out[0] == SPI_OPCODE_FAST_READ && trans->bytesout == 5) {
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- --trans->bytesout;
- }
-}
-
-static int spi_setup_opcode(spi_transaction *trans)
-{
- uint16_t optypes;
- uint8_t opmenu[cntlr.menubytes];
-
- trans->opcode = trans->out[0];
- spi_use_out(trans, 1);
- if (!ichspi_lock) {
- /* The lock is off, so just use index 0. */
- writeb_(trans->opcode, cntlr.opmenu);
- optypes = readw_(cntlr.optype);
- optypes = (optypes & 0xfffc) | (trans->type & 0x3);
- writew_(optypes, cntlr.optype);
- return 0;
- } else {
- /* The lock is on. See if what we need is on the menu. */
- uint8_t optype;
- uint16_t opcode_index;
-
- /* Write Enable is handled as atomic prefix */
- if (trans->opcode == SPI_OPCODE_WREN)
- return 0;
-
- read_reg(cntlr.opmenu, opmenu, sizeof(opmenu));
- for (opcode_index = 0; opcode_index < cntlr.menubytes;
- opcode_index++) {
- if (opmenu[opcode_index] == trans->opcode)
- break;
- }
-
- if (opcode_index == cntlr.menubytes) {
- printk(BIOS_DEBUG, "ICH SPI: Opcode %x not found\n",
- trans->opcode);
- return -1;
- }
-
- optypes = readw_(cntlr.optype);
- optype = (optypes >> (opcode_index * 2)) & 0x3;
- if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
- optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
- trans->bytesout >= 3) {
- /* We guessed wrong earlier. Fix it up. */
- trans->type = optype;
- }
- if (optype != trans->type) {
- printk(BIOS_DEBUG, "ICH SPI: Transaction doesn't fit type %d\n",
- optype);
- return -1;
- }
- return opcode_index;
- }
-}
-
-static int spi_setup_offset(spi_transaction *trans)
-{
- /* Separate the SPI address and data. */
- switch (trans->type) {
- case SPI_OPCODE_TYPE_READ_NO_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_NO_ADDRESS:
- return 0;
- case SPI_OPCODE_TYPE_READ_WITH_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS:
- trans->offset = ((uint32_t)trans->out[0] << 16) |
- ((uint32_t)trans->out[1] << 8) |
- ((uint32_t)trans->out[2] << 0);
- spi_use_out(trans, 3);
- return 1;
- default:
- printk(BIOS_DEBUG, "Unrecognized SPI transaction type %#x\n", trans->type);
- return -1;
- }
-}
-
-/*
- * Wait for up to 60ms til status register bit(s) turn 1 (in case wait_til_set
- * below is True) or 0. In case the wait was for the bit(s) to set - write
- * those bits back, which would cause resetting them.
- *
- * Return the last read status value on success or -1 on failure.
- */
-static int ich_status_poll(u16 bitmask, int wait_til_set)
-{
- int timeout = 6000; /* This will result in 60 ms */
- u16 status = 0;
-
- while (timeout--) {
- status = readw_(cntlr.status);
- if (wait_til_set ^ ((status & bitmask) == 0)) {
- if (wait_til_set)
- writew_((status & bitmask), cntlr.status);
- return status;
- }
- udelay(10);
- }
-
- printk(BIOS_DEBUG, "ICH SPI: SCIP timeout, read %x, expected %x\n",
- status, bitmask);
- return -1;
-}
-
-int spi_xfer(struct spi_slave *slave, const void *dout,
- unsigned int bitsout, void *din, unsigned int bitsin)
-{
- uint16_t control;
- int16_t opcode_index;
- int with_address;
- int status;
-
- spi_transaction trans = {
- dout, bitsout / 8,
- din, bitsin / 8,
- 0xff, 0xff, 0
- };
-
- /* There has to always at least be an opcode. */
- if (!bitsout || !dout) {
- printk(BIOS_DEBUG, "ICH SPI: No opcode for transfer\n");
- return -1;
- }
- /* Make sure if we read something we have a place to put it. */
- if (bitsin != 0 && !din) {
- printk(BIOS_DEBUG, "ICH SPI: Read but no target buffer\n");
- return -1;
- }
- /* Right now we don't support writing partial bytes. */
- if (bitsout % 8 || bitsin % 8) {
- printk(BIOS_DEBUG, "ICH SPI: Accessing partial bytes not supported\n");
- return -1;
- }
-
- if (ich_status_poll(SPIS_SCIP, 0) == -1)
- return -1;
-
- writew_(SPIS_CDS | SPIS_FCERR, cntlr.status);
-
- spi_setup_type(&trans);
- if ((opcode_index = spi_setup_opcode(&trans)) < 0)
- return -1;
- if ((with_address = spi_setup_offset(&trans)) < 0)
- return -1;
-
- if (trans.opcode == SPI_OPCODE_WREN) {
- /*
- * Treat Write Enable as Atomic Pre-Op if possible
- * in order to prevent the Management Engine from
- * issuing a transaction between WREN and DATA.
- */
- if (!ichspi_lock)
- writew_(trans.opcode, cntlr.preop);
- return 0;
- }
-
- /* Preset control fields */
- control = SPIC_SCGO | ((opcode_index & 0x07) << 4);
-
- /* Issue atomic preop cycle if needed */
- if (readw_(cntlr.preop))
- control |= SPIC_ACS;
-
- if (!trans.bytesout && !trans.bytesin) {
- /* SPI addresses are 24 bit only */
- if (with_address)
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- /*
- * This is a 'no data' command (like Write Enable), its
- * bitesout size was 1, decremented to zero while executing
- * spi_setup_opcode() above. Tell the chip to send the
- * command.
- */
- writew_(control, cntlr.control);
-
- /* wait for the result */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Command transaction error\n");
- return -1;
- }
-
- return 0;
- }
-
- /*
- * Check if this is a write command attempting to transfer more bytes
- * than the controller can handle. Iterations for writes are not
- * supported here because each SPI write command needs to be preceded
- * and followed by other SPI commands, and this sequence is controlled
- * by the SPI chip driver.
- */
- if (trans.bytesout > cntlr.databytes) {
- printk(BIOS_DEBUG, "ICH SPI: Too much to write. Does your SPI chip driver use"
- " CONTROLLER_PAGE_LIMIT?\n");
- return -1;
- }
-
- /*
- * Read or write up to databytes bytes at a time until everything has
- * been sent.
- */
- while (trans.bytesout || trans.bytesin) {
- uint32_t data_length;
-
- /* SPI addresses are 24 bit only */
- writel_(trans.offset & 0x00FFFFFF, cntlr.addr);
-
- if (trans.bytesout)
- data_length = min(trans.bytesout, cntlr.databytes);
- else
- data_length = min(trans.bytesin, cntlr.databytes);
-
- /* Program data into FDATA0 to N */
- if (trans.bytesout) {
- write_reg(trans.out, cntlr.data, data_length);
- spi_use_out(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
-
- /* Add proper control fields' values */
- control &= ~((cntlr.databytes - 1) << 8);
- control |= SPIC_DS;
- control |= (data_length - 1) << 8;
-
- /* write it */
- writew_(control, cntlr.control);
-
- /* Wait for Cycle Done Status or Flash Cycle Error. */
- status = ich_status_poll(SPIS_CDS | SPIS_FCERR, 1);
- if (status == -1)
- return -1;
-
- if (status & SPIS_FCERR) {
- printk(BIOS_DEBUG, "ICH SPI: Data transaction error\n");
- return -1;
- }
-
- if (trans.bytesin) {
- read_reg(cntlr.data, trans.in, data_length);
- spi_use_in(&trans, data_length);
- if (with_address)
- trans.offset += data_length;
- }
- }
-
- /* Clear atomic preop now that xfer is done */
- writew_(0, cntlr.preop);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-03 00:59:04 +0000